Home / 25,721.10-38,581.74-9,072.09

Finding the Fourth Proportional to 25,721.10, 38,581.74 and 9,072.09

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Solution

The fourth proportional to 25,721.10, 38,581.74 and 9,072.09 is: 13,608.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,721.10 : 38,581.74 = 9,072.09 : x
  2. Step 2: Convert to fraction form
    25,721.10/38,581.74 = 9,072.09/x
  3. Step 3: Cross multiply
    25,721.10x = 38,581.74 × 9,072.09
  4. Step 4: Simplify right side
    25,721.10x = 350,017,017.64
  5. Step 5: Solve for x
    x = 350,017,017.64/25,721.10
  6. Step 6: Final answer
    x = 13,608.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.